| Title: | DEChub/HUBwatch/PROBEwatch CONFERENCE | 
| Notice: | Firmware -2, Doc -3, Power -4, HW kits -5, firm load -6&7 | 
| Moderator: | NETCAD::COLELLA DT | 
| Created: | Wed Nov 13 1991 | 
| Last Modified: | Fri Jun 06 1997 | 
| Last Successful Update: | Fri Jun 06 1997 | 
| Number of topics: | 4455 | 
| Total number of notes: | 16761 | 
    Hi,
        we are currently experiencing our week of summer here in the UK. 
    I have a customer who is seeing yellow/red temp alert on his hub900.
    
    Anybody know the temperature thresholds at which these alerts are
    triggered?
    
    Thanks,
    Paul.
| T.R | Title | User | Personal Name | Date | Lines | 
|---|---|---|---|---|---|
| 2449.1 | NETCAD::THAYER | Fri Jun 30 1995 09:55 | 27 | ||
| 
    Pre-WAVE 3 Modules
	Temp Yellow  30-35C Ambient	Fan Speed bumped up from 8v to 12v.
					Modules should continue to run happily.
	Temp Red     60-70C Ambient	Module initiates orderly shutdown.
    WAVE 3 (and after) Modules 
	             30-35C Ambient	Fan Speed bumped up from 8v to 12v.
					Modules should continue to run happily.
					No alarm is issued.
	Temp Yellow  45-50C Ambient	
	Temp Red     60-70C Ambient	Module initiates orderly shutdown.
	I would be surprised and worried if the Hub reported Temp Red.
	It would warrant an investigation to see that the installation
	was properly ventilated.
					John Thayer
 | |||||
| 2449.2 | red alert | KERNEL::SMITH_P | Fri Jun 30 1995 10:54 | 9 | |
|     John,
          thanks for the prompt reply. The hub is mounted in a comms rack
    with other equipment including a monitor. Opening the doors on the rack
    drops the alert from red to yellow. Given the temperature thresholds
    that you quoted, the whole installation sounds very unhealthy. Think
    I'll get somebody down there!
    
    Thanks again,
    Paul.          
 | |||||
| 2449.3 | NETCAD::GERHARDT | Out of Control | Mon Jul 03 1995 13:30 | 4 | |
|     the temperature settings for the hub is different fromthe modules.
    
    the yellow temp was around 65C and the red around 72C.  I could be more
    exact if I was able to locate my notebook...
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